Fix missed update of nexthop where nexthop expired but not changed to new MAC.
Fix missed update of nexthop where nexthop expired but not changed to new MAC.

Bairdo/faucet,faucetsdn/faucet,REANNZ/faucet,trentindav/faucet,trungdtbk/faucet,wackerly/faucet,mwutzke/faucet,mwutzke/faucet,isomer/faucet,anarkiwi/faucet,wackerly/faucet,gizmoguy/faucet,shivarammysore/faucet,gizmoguy/faucet,isomer/faucet,anarkiwi/faucet,REANNZ/faucet,Bairdo/faucet,trungdtbk/faucet,byllyfish/faucet,shivarammysore/faucet,faucetsdn/faucet,trentindav/faucet,byllyfish/faucet